Aditya remembered that Sodium shouldn’t be stored in water and so used ethanol to store sodium. He observed sodium disappearing to give a yellow powder. What is the yellow powder?

Baking powder

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Sodium carbonate

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Sodium ethoxide

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Sodium hydroxide

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Solution

The correct option is C Sodium ethoxide
The question is regarding ACID + METAL reaction. Ethanol in presence of Metals acts like Acid, so, the acid here is ethanol and the metal is sodium. All metals liberate hydrogen on reacting with acids.
Ethanol reacts with sodium leading to the evolution of hydrogen and sodium ethoxide. Sodium ethoxide is fine yellow powder.
$2 N a + C H_{3} C H_{2} O H \to 2 C H_{3} C H_{2} O^{-} N a^{+} + H_{2}$

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